plaster of paris

Noun plaster of paris has 1 sense

• plaster of paris(n = noun.substance) plaster - any of several gypsum cements; a white powder (a form of calcium sulphate) that forms a paste when mixed with water and hardens into a solid; used in making molds and sculptures and casts for broken limbs;
has particulars: gesso
is a kind of calcium sulfate, calcium sulphate